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4 years ago

What is the y-intercept for lines that have the general form, y = mx

Mathematics

1 answer:

Stolb23 [73]4 years ago

4 0

Answer:

It is 0

Step-by-step explanation:

y = mx indicates that the line has no y intercept and that it passes through the origin (0,0).

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The formula for height, in feet of a projectile under the influence of gravity is given by h=-16t^2+vt+s, where t is the time in

kifflom [539]

Answer:

1.55s

Step-by-step explanation:

The height equation of the projectile is given as;

h = -16t^2 + vt + s .......1

where;

t is the time in seconds,

v is the upward velocity at the start,

s is the starting height.

Given;

v = 70 ft/s

s = 5 ft

Substituting the values equation 1 becomes;

h = -16t^2 + 70t + 5

For the ball to reach 75 ft, h = 0

75 = -16t^2 + 70t + 5

-16t^2 + 70t + 5 - 75 = 0

-16t^2 + 70t - 70 = 0

solving the quadratic equation;

Time t = 2.83 s and t = 1.55s

Therefore, the ball will first reach 75 ft after 1.55 seconds.

3 0

3 years ago

The perimeter of a triangle is 92 centimeters. if two sides are equally long and the third side is 8 centimeters longer than the

Dmitry [639]

Nvm wait I read the question wrong. The real answer would be 28, 28, 36

6 0

4 years ago

A company charges a customer$50 to bring an excavator to thier home in addition to $45 per hour for the service A customer has b

ArbitrLikvidat [17]

Answer:

the answer is 5 hours or less which is 5 and the < sign with line under which means they have equal to and less than that so the most hours they can do is 5

Step-by-step explanation:

you have 275

you subtract 50 from 275

275-50=225

divide 225 by 45

225/45=5

8 0

2 years ago

An analyst must decide between two different forecasting techniques for weekly sales of roller blades: a linear trend equation a

Amiraneli [1.4K]

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Mean Absolute Deviation MAD

$MAD = \sum_{i=1}^{n} \frac{\left | actual_{i}-forecast_{i} \right |}{n}$

Mean squared error

$MSE=\Sigma^{n}_{i=1} \frac{(Actual_i - Forecast_i)^2}{(n - 1)}$

linear trend equation is $Ft = 124 + 2t$

$MAD = \frac{23}{10} = 2.3\\\\MSE = \frac{91}{9}= 10.11\\\\$

Naive method

$MAD = \frac{36}{9} = 4\\\\MSE = \frac{202}{8}=25.25\\\\MAD (Naive) = 4\\\\MAD (Linear) =2.3\\\\MSE (Naive)=25.25\\\\MSE (Linear)=10.11\\\\$

Please find the attached file.

7 0

3 years ago

Need help on the two questions the are blank

LUCKY_DIMON [66]

The 1st one is .6 divided by 12

4 0

3 years ago